Work arouind iai-callgrind apt failures

Usually `cargo binstall iai-callgrind-runner` handles apt dependencies.
However, the following has been happening:

    Err:11 mirror+file:/etc/apt/apt-mirrors.txt noble-updates/main amd64 libc6-dbg amd64 2.39-0ubuntu8.3
      404  Not Found [IP: 40.81.13.82 80]
    E: Failed to fetch mirror+file:/etc/apt/apt-mirrors.txt/pool/main/g/glibc/libc6-dbg_2.39-0ubuntu8.3_amd64.deb  404  Not Found [IP: 40.81.13.82 80]
    Fetched 19.8 MB in 6s (3138 kB/s)
    E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

Installing the dependencies manually seems to resolve the issue.

library/compiler-builtins/libm/.github/workflows/main.yaml

@@ -158,6 +158,8 @@ jobs:
 
     - name: Set up dependencies
       run: |
+        sudo apt update
+        sudo apt install -y valgrind gdb libc6-dbg # Needed for iai-callgrind
         rustup update "$BENCHMARK_RUSTC" --no-self-update
         rustup default "$BENCHMARK_RUSTC"
         # Install the version of iai-callgrind-runner that is specified in Cargo.toml